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Yamaha RZ 125S

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Make Model

Yamaha RZ 125S

Year

1983 - 84

Engine

Two stroke, single cylinder

Capacity

123 cc / 7.5 cu-in
Bore x Stroke 56 х 50 mm
Cooling System Liquid cooled
Compression Ratio 6.4:1
Lubrication Autolube
Oil Capacity 1.1 L

Induction

24mm Mikuni carburetors

Ignition 

Hitachi CDI
Starting Kick

Max Power

20 hp / 15.5 kW @ 9500 rpm

Max Torque

1.6 kgf-m / 16 Nm @ 9250 rpm

Transmission 

6 Speed 
Final Drive Chain

Front Suspension

32mm Telescopic forks

Rear Suspension

Monocross linkage 6-way preload adjustment

Front Brakes

Single 245mm disc

Rear Brakes

130mm Drum

Front Tyre

2.75-18-4PR

Rear Tyre

3.00-18-6PR
Dimensions Length 1990 mm / 78.3 in
Width 735 mm / 28.9 in
Height 1190 mm / 46.8 in
Wheelbase 1295 mm / 50.9 in
Seat Height 775 mm / 30.5 in
Ground Clearance 185 mm / 7.2 in

Dry Weight

98 kg / 216 lbs

Fuel Capacity 

13 Litres / 3.4 US gal

Consumption Average

64 mpg

Standing ¼ Mile  

16.7 sec

Top Speed

81 mph / 130.3 km/h
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